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1年前
下列各式中,不是等式的式子是 [ ] A.3+2=6 B.ab=ba C.2x-1=1+2x D.5(x-1)=3
1年前
The mother didn't know___________ is to blame for the broken glass as it happened while she was out.
1年前
We all want to try something new, but finding the _________ to start is always the hardest part.
1年前
剪刀、斧头要磨得锋利是通过______受力面积,而______压强.
1年前